Deprecate the round builtin - python-ideas

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Message from discussion Deprecate the round builtin
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From: Joshua Landau <joshua.landau...@gmail.com>
Date: Sun, 30 Sep 2012 22:48:21 +0100
Message-ID: <CAN1F8qWsA55OKQbnFfggtCF0_4zbqjjNh59zyxOPR2yJTm8...@mail.gmail.com>
To: "Gregory P. Smith" <g...@krypto.org>
Cc: python-id...@python.org
Subject: Re: [Python-ideas] Deprecate the round builtin
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On 30 September 2012 22:38, Gregory P. Smith <g...@krypto.org> wrote:

> Why suggest adding new round-like functions to the math module rather than
> defining a new round method on all numerical objects?


 >>> round("")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: type str doesn't define __round__ method

It seems it is done like that already ;)
This seems like a problem for the proposal, though: we can't have it in the
math library if it's a method!

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On 30 September 2012 22:38, Gregory P. Smith <span dir=3D"ltr">&lt;<a href=
=3D"mailto:g...@krypto.org" target=3D"_blank">g...@krypto.org</a>&gt;</span=
> wrote:<br><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Why suggest adding new round-like functions to the math module rather than =
defining a new round method on all numerical objects?</blockquote><div><br>=
</div><div>=A0&gt;&gt;&gt; round(&quot;&quot;)</div><div>Traceback (most re=
cent call last):</div>

<div>=A0 File &quot;&lt;stdin&gt;&quot;, line 1, in &lt;module&gt;</div><di=
v>TypeError: type str doesn&#39;t define __round__ method</div><div><br></d=
iv><div>It seems it is done like that already ;)</div><div>This seems like =
a problem for the proposal, though: we can&#39;t have it in the math librar=
y if it&#39;s a method!</div>

</div>

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